The ADM-XRC is a high performance reconfigurable PMC (PCI Mezzanine Card) based on the Xilinx Virtex and Virtex-E range of FPGAs. The ADM-XRC complements the Virtex with PCI interface, external memory, high density I/O, programmable clocks and flash boot facilities. A comprehensive cross platform API with support for WinNT/2000/XP, linux and VxWorks provides access to the full functionality of these hardware features and the Virtex-II devices.